Charleston, SC: records

4 October 2026: The hottest day on record in Charleston, SC: 105°F on Sunday 1 August 1999.

The record begins: 1937

All-time records

Hottest day: 105°F; 1 August 1999
Coldest night: 6°F; 21 January 1985
Wettest day: 11.50 in; 3 October 2015
Warmest night: 83°F; 4 August 2011
Coldest day: 20°F; 23 December 1989

Daily records by decade

New daily records set in Charleston, SC by decade since the 1960s: the most record highs, 91, came in the 1980s; the most record lows, 73, in the 1970s.

Record highs
Record lows

Every decade as a table

Decade	Record highs	Record lows	Years in the record
1930s	0	0	3
1940s	0	0	10
1950s	0	0	10
1960s	33	54	10
1970s	72	73	10
1980s	91	49	10
1990s	54	20	10
2000s	29	18	10
2010s	53	9	10
2020s	24	4	7

Records by month

Month	Highest	Lowest	Wettest day
January	83°F 26 January 2024, 16 January 1950	6°F 21 January 1985	3.90 in 12 January 1993
February	87°F 16 February 1989	12°F 12 February 1973	5.07 in 10 February 1940
March	90°F 23 March 2026, 21 March 2017, 10 March 1974 and 1 more	15°F 3 March 1980	4.48 in 5 March 1959
April	95°F 20 April 2002	29°F 6 April 1944	4.10 in 15 April 1958
May	101°F 29 May 2019, 28 May 2019	36°F 2 May 1963	6.23 in 22 May 1967
June	103°F 24 June 1944	50°F 12 June 1972, 2 June 1972	9.40 in 11 June 1973
July	104°F 20 July 1986, 19 July 1986	58°F 5 July 1952	5.39 in 3 July 1981
August	105°F 1 August 1999	56°F 18 August 1979	7.88 in 11 August 1940
September	99°F 5 September 1944, 4 September 1944	42°F 30 September 1967	10.52 in 21 September 1998
October	94°F 4 October 2019, 5 October 1986, 5 October 1954	27°F 29 October 1976, 30 October 1952	11.50 in 3 October 2015
November	88°F 1 November 1961	15°F 25 November 1950	5.24 in 1 November 1969
December	83°F 11 December 1972	8°F 13 December 1962	4.00 in 23 December 1941

Streaks, months and years

Longest heat streak	42 days	27 June to 7 August 1993	A high of 90°F or above
Longest cold streak	2 days	8 January to 9 January 1970	A high of 32°F or below
Wettest month	27.24 in	June 1973
Driest month	a trace	October 2000
Wettest year	74.89 in	2015
Driest year	30.31 in	1954

Every record in words

The coldest night on record in Charleston, SC: a low of 6°F on Monday 21 January 1985.
The wettest day on record in Charleston, SC: 11.50 in on Saturday 3 October 2015.
The warmest night on record in Charleston, SC: a low of 83°F on Thursday 4 August 2011.
The coldest day on record in Charleston, SC: a high of 20°F on Saturday 23 December 1989.
The longest run of days with a high of 90°F or above in Charleston, SC: 42 days, from Sunday 27 June to Saturday 7 August 1993.
The longest run of days with a high of 32°F or below in Charleston, SC: 2 days, from Thursday 8 January to Friday 9 January 1970.
The wettest month on record in Charleston, SC: June 1973, with 27.24 in of precipitation.
The driest month on record in Charleston, SC: October 2000, with a trace of precipitation.
The wettest year on record in Charleston, SC: 2015, with 74.89 in of precipitation.
The driest year on record in Charleston, SC: 1954, with 30.31 in of precipitation.

Charleston, SC the day's answers